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BQ2014SN-D120 PDF预览

BQ2014SN-D120

更新时间： 2024-10-27 21:54:07
品牌 Logo 应用领域
德州仪器 - TI 仪表
页数 文件大小 规格书
22页 233K
描述
Gas Gauge IC with External Charge Control

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中文翻译

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BQ2014SN-D120 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Not Recommended零件包装代码：SOIC
包装说明：SOP, SOP16,.25针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：6 weeks
风险等级：7.45可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G16
JESD-609代码：e4长度：9.9 mm
湿度敏感等级：2信道数量：1
功能数量：1端子数量：16
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：3/6.5 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Power Management Circuits
最大供电电流 (Isup)：0.25 mA最大供电电压 (Vsup)：6.5 V
最小供电电压 (Vsup)：3 V标称供电电压 (Vsup)：4.25 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

BQ2014SN-D120 数据手册

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bq2014  
Gas Gauge IC with External Charge Control  
Nominal Available Charge (NAC)  
Features  
➤ Conservative and repeatable  
measurement of available charge  
in rechargeable batteries  
General Description  
may be directly indicated using a  
The bq2014 Gas Gauge IC is in-  
tended for battery-pack or in-system  
installation to maintain an accurate  
record of available battery charge.  
The IC monitors the voltage drop  
across a sense resistor connected in  
series between the negative battery  
terminal and ground to determine  
charge and discharge activity of the  
battery.  
five-segment LED display.  
The bq2014 supports a simple single-  
line bidirectional serial link to an ex-  
ternal processor (with a common  
ground). The bq2014 outputs battery  
information in response to external  
commands over the serial link.  
➤ Charge control output operates an  
external charge controller such as  
the bq2004 Fast Charge IC  
➤ Designed for battery pack inte-  
gration  
Internal registers include available  
charge, temperature, capacity, bat-  
tery voltage, battery ID, battery  
status, and programming pin set-  
tings. To support subassembly test-  
ing, the outputs may also be con-  
trolled. The external processor may  
also overwrite some of the bq2014  
gas gauge data registers.  
- 120µA typical standby current  
➤ Display capacity via single-wire  
serial communication port or di-  
rect drive of LEDs  
Self-discharge of NiMH and NiCd  
batteries is estimated based on an  
internal timer and temperature sen-  
sor. Compensations for battery tem-  
perature and rate of charge or dis-  
charge are applied to the charge, dis-  
charge, and self-discharge calcula-  
tions to provide available charge in-  
formation across a wide range of op-  
erating conditions. Battery capacity  
is automatically recalibrated, or  
“learned,” in the course of a dis-  
charge cycle from full to empty.  
➤ Measurements compensated for  
current and temperature  
The bq2014 may operate directly  
from three or four cells. With the  
REF output and an external transis-  
tor, a simple, inexpensive regulator  
can be built to provide VCC across a  
greater number of cells.  
➤ Self-discharge compensation using  
internal temperature sensor  
➤ User-selectable end-of-discharge  
threshold  
➤ Battery voltage, nominal avail-  
able charge, temperature, etc.  
available over serial port  
The bq2014 includes a charge con-  
trol output that controls an external  
Fast Charge IC such as the bq2004.  
➤ 16-pin narrow SOIC  
Pin Connections  
Pin Names  
LCOM  
LED common output  
REF  
CHG  
DQ  
Voltage reference output  
Charge control output  
SEG1/PROG1 LED segment 1/  
program 1 input  
LCOM  
SEG /PROG  
1
2
3
4
5
6
16  
15  
14  
13  
12  
11  
V
CC  
Serial communications  
input/output  
REF  
CHG  
DQ  
1
1
SEG2/PROG2 LED segment 2/  
program 2 input  
SEG /PROG  
2
2
EMPTY  
Empty battery indicator  
output  
SEG /PROG  
3
3
SEG3/PROG3 LED segment 3/  
program 3 input  
SEG /PROG  
EMPTY  
SB  
4
4
SB  
Battery sense input  
Display control input  
Sense resistor input  
3.0–6.5V  
SEG /PROG  
5
5
SEG4/PROG4 LED segment 4/  
program 4 input  
DONE  
7
8
10  
9
DISP  
SR  
DISP  
SR  
V
SS  
SEG5/PROG5 LED segment 5/  
program 5 input  
16-Pin Narrow SOIC  
VCC  
VSS  
PN201401.eps  
DONE  
Fast charge complete  
System ground  
12/95 C  
1
1234567...22

中文翻译

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BQ2014SN-D120 替代型号

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